VN nanoparticle-assembled hollow microspheres/N-doped carbon nanofibers: An anode material for superior potassium storage

Thanks to inexpensive and bountiful potassium resources, potassium ion batteries (PIBs) have come into the spotlight as viable alternatives for next-generation battery systems.However, Boxers poor electrochemical kinetics due to the large size of the K+ is a major challenge for PIB anodes.In this paper, an ingenious design of VN nanoparticle-assemb

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